You are buying two kinds of notebooks for school. A spiral notebook costs $2, and a three-ring notebook costs $4. You must have at least six notebooks. The cost of the notebooks can be no more than $20. Given the graph of the linear system, which system is the solution of the real-world problem?

You can buy 3 $2 notebooks and 3 $4 notebooks.

Step-by-step explanation:

A possible solution (which would be positive) to the inequality is

That would be 6 notebooks in total.

You can also do:

3 spiral notebooks and 4 three-ring notebooks.

That one would be 7 notebooks in total.

10000000000000000000000000000000

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.